Intramolecular cycloadditions of N-alkenoyl aryl azides
Abstract
Depending upon the reaction conditions, intramolecular cycloadditions of variously substituted N-alkenoyl aryl azides 4 give the [1,2,3]triazolobenzodiazepine 5, bridgehead N double bond of the latter compounds is also exploited in the synthesis of [1,2,4]triazolobenzodiazepines 10 by means of nitrilimine cycloadditions.